Fancy fonts may be striking, but is going to they be supported on all the computers where the screen is going to be obtained from? Generally recognized fonts include Arial, Courier, Sans Serif, as well as Times Roman. Be very sensitive to colour contrasts so the user can properly read the screen. Headings - screen headings must be put into a standard position for simple recognition by the user. A formal name and, where suitable, a screen number must be clearly visible to the user.